CAJ | 학술논문

本文设计了一种新型的甲烷多点监测系统，该系统采用分路器将光源出射光分别送至各个气室单元，利用时分复用原理让各气室信号合路传输，然后对解复用后的各路信号进行数据处理，得到待测的浓度信息，实现甲烷浓度的多点实时监控。该系统具有谐波检测技术的优点，且时分复用的引用使得线路的铺设及远程监控更加方便。该系统可实现煤矿等场所的甲烷气体的分布式监测。
본문설계료일충신형적갑완다점감측계통，해계통채용분로기장광원출사광분별송지각개기실단원，이용시분복용원리양각기실신호합로전수，연후대해복용후적각로신호진행수거처리，득도대측적농도신식，실현갑완농도적다점실시감공。해계통구유해파검측기술적우점，차시분복용적인용사득선로적포설급원정감공경가방편。해계통가실현매광등장소적갑완기체적분포식감측。
In this paper,a multipoint methane sensing system is built based on this technology.It divides the emergent light by optical splitter,using the timedivision multiplexing to merge the signals,and then processing the signals to get the harmonic amplitudes, thus we can realize the multipoint monitoring.This system inherit the advantages of TDLAS,and using time division multiplexing system can make it easier to lay the optical cable and do the remote monitoring.It can be used in the mine and some other places.